Rom 1:16, Rom 3:30, Gal 2:16, Eph 2:8, Rom 10:11, Isa 28:16, Rom 10:13, Joel 2:32
Jewish Christians demanded the law from Gentile Christians. Then Peter said that salvation comes not through the law, but through faith in Jesus Christ. (Acts 15:5-11)
Acts 15:5 But there rose up certain of the sect of the Pharisees which believed, saying, That it was needful to circumcise them, and to command them to keep the law of Moses. 6 And the apostles and elders came together for to consider of this matter. 7 And when there had been much disputing, Peter rose up, and said unto them, Men and brethren, ye know how that a good while ago God made choice among us, that the Gentiles by my mouth should hear the word of the gospel, and believe. 8 And God, which knoweth the hearts, bare them witness, giving them the Holy Ghost, even as he did unto us; 9 And put no difference between us and them, purifying their hearts by faith. 10 Now therefore why tempt ye God, to put a yoke upon the neck of the disciples, which neither our fathers nor we were able to bear? 11 But we believe that through the grace of the Lord Jesus Christ we shall be saved, even as they.
All who believe in Jesus as the Christ will be saved. (Rom 1:16, Rom 3:20, Gal 2:16)
Rom 1:16 For I am not ashamed of the gospel of Christ: for it is the power of God unto salvation to every one that believeth; to the Jew first, and also to the Greek.
Rom 3:20 Therefore by the deeds of the law there shall no flesh be justified in his sight: for by the law is the knowledge of sin.
Gal 2:16 Knowing that a man is not justified by the works of the law, but by the faith of Jesus Christ, even we have believed in Jesus Christ, that we might be justified by the faith of Christ, and not by the works of the law: for by the works of the law shall no flesh be justified.
Salvation does not come through our efforts. You are saved by believing that Jesus is the Christ. (Eph 2:8)
Eph 2:8 For by grace are ye saved through faith; and that not of yourselves: it is the gift of God:
The Old Testament speaks of salvation through faith in Christ. (Rom 10:11, Isa 28:16, Hab 2:4)
Rom 10:11 For the scripture saith, Whosoever believeth on him shall not be ashamed.
Isa 28:16 Therefore thus saith the Lord God, Behold, I lay in Zion for a foundation a stone, a tried stone, a precious corner stone, a sure foundation: he that believeth shall not make haste.
Hab 2:4 Behold, his soul which is lifted up is not upright in him: but the just shall live by his faith.
Anyone who believes in Jesus as the Christ and calls Him Lord will be saved. (Rom 10:13, Joel 2:32)
Rom 10:13 For whosoever shall call upon the name of the Lord shall be saved.
Joel 2:32 And it shall come to pass, that whosoever shall call on the name of the Lord shall be delivered: for in mount Zion and in Jerusalem shall be deliverance, as the Lord hath said, and in the remnant whom the Lord shall call.